diff options
Diffstat (limited to 'drivers/video/fbsysfs.c')
| -rw-r--r-- | drivers/video/fbsysfs.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c index 007c8e9b2b39..08dac9580d15 100644 --- a/drivers/video/fbsysfs.c +++ b/drivers/video/fbsysfs.c @@ -213,6 +213,70 @@ static ssize_t show_bpp(struct class_device *class_device, char *buf) return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.bits_per_pixel); } +static ssize_t store_rotate(struct class_device *class_device, const char *buf, + size_t count) +{ + struct fb_info *fb_info = class_get_devdata(class_device); + struct fb_var_screeninfo var; + char **last = NULL; + int err; + + var = fb_info->var; + var.rotate = simple_strtoul(buf, last, 0); + + if ((err = activate(fb_info, &var))) + return err; + + return count; +} + + +static ssize_t show_rotate(struct class_device *class_device, char *buf) +{ + struct fb_info *fb_info = class_get_devdata(class_device); + + return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.rotate); +} + +static ssize_t store_con_rotate(struct class_device *class_device, + const char *buf, size_t count) +{ + struct fb_info *fb_info = class_get_devdata(class_device); + int rotate; + char **last = NULL; + + acquire_console_sem(); + rotate = simple_strtoul(buf, last, 0); + fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE, &rotate); + release_console_sem(); + return count; +} + +static ssize_t store_con_rotate_all(struct class_device *class_device, + const char *buf, size_t count) +{ + struct fb_info *fb_info = class_get_devdata(class_device); + int rotate; + char **last = NULL; + + acquire_console_sem(); + rotate = simple_strtoul(buf, last, 0); + fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE_ALL, &rotate); + release_console_sem(); + return count; +} + +static ssize_t show_con_rotate(struct class_device *class_device, char *buf) +{ + struct fb_info *fb_info = class_get_devdata(class_device); + int rotate; + + acquire_console_sem(); + rotate = fb_con_duit(fb_info, FB_EVENT_GET_CON_ROTATE, NULL); + release_console_sem(); + return snprintf(buf, PAGE_SIZE, "%d\n", rotate); +} + static ssize_t store_virtual(struct class_device *class_device, const char * buf, size_t count) { @@ -440,6 +504,9 @@ static struct class_device_attribute class_device_attrs[] = { __ATTR(virtual_size, S_IRUGO|S_IWUSR, show_virtual, store_virtual), __ATTR(name, S_IRUGO, show_name, NULL), __ATTR(stride, S_IRUGO, show_stride, NULL), + __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), + __ATTR(con_rotate, S_IRUGO|S_IWUSR, show_con_rotate, store_con_rotate), + __ATTR(con_rotate_all, S_IWUSR, NULL, store_con_rotate_all), }; int fb_init_class_device(struct fb_info *fb_info) |